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US 4,940,914 AGranted
Vibration absorbing apparatus
AssigneeBridgestone Corporation
InventorsKeiichiro Mizuno, Kazuyoshi Iida
Life of this patent
Estimating the term…
Abstract
A vibration absorbing apparatus for reducing vibrations of a vibration damping objective comprises a vibration member excited by a piezo-ceramic element. The voltage applied to the piezo-ceramic element is controlled in accordance with the vibration state of the objective.
Claims6
A vibration absorbing apparatus for absorbing vibrations of a vibration damping objective, comprising:
- a support member attached to said vibration damping objective and having a plurality of notches formed therein;
- a plurality of vibration members fitted in said notches of said support member, said vibration members being of different lengths;
- a plurality of piezo-ceramic elements each attached to a base of a respective one of said vibration members;
- detecting means for detecting movement of said vibration damping objective;
- and
- voltage applying means, responsive to said detecting means, for applying a voltage to the piezo-ceramic elements in accordance with the vibration state of the objective so as to induce vibrations in said vibration members and reduce an amplitude of vibrations of the objective.
3 more elements
Dependencies are inferred from the claim text.